A Printer's Devilry is a form of cryptic crossword puzzle, first invented by Afrit (Alistair Ferguson Ritchie) in 1937. A Printer's Devilry puzzle does not follow the standard Ximenean rules of crossword setting, since the clues do not define the answers.[1] Instead, each clue consists of a sentence from which a string of letters has been removed and, where necessary, the punctuation and word breaks in the clue rearranged to form a new more-or-less grammatical sentence. The challenge to the solver is to find the missing letters, which will spell out a word or phrase that should be entered into the grid.